19426960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{307}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 52246656

約数和(自身を除く): 32819696

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 113, 140, 226, 280, 307, 452, 560, 565, 614, 791, 904, 1130, 1228, 1535, 1582, 1808, 2149, 2260, 2456, 3070, 3164, 3955, 4298, 4520, 4912, 6140, 6328, 7910, 8596, 9040, 10745, 12280, 12656, 15820, 17192, 21490, 24560, 31640, 34384, 34691, 42980, 63280, 69382, 85960, 138764, 171920, 173455, 242837, 277528, 346910, 485674, 555056, 693820, 971348, 1214185, 1387640, 1942696, 2428370, 2775280, 3885392, 4856740, 9713480, 19426960]

約数ペア:

[(1, 19426960), (2, 9713480), (4, 4856740), (5, 3885392), (7, 2775280), (8, 2428370), (10, 1942696), (14, 1387640), (16, 1214185), (20, 971348), (28, 693820), (35, 555056), (40, 485674), (56, 346910), (70, 277528), (80, 242837), (112, 173455), (113, 171920), (140, 138764), (226, 85960), (280, 69382), (307, 63280), (452, 42980), (560, 34691), (565, 34384), (614, 31640), (791, 24560), (904, 21490), (1130, 17192), (1228, 15820), (1535, 12656), (1582, 12280), (1808, 10745), (2149, 9040), (2260, 8596), (2456, 7910), (3070, 6328), (3164, 6140), (3955, 4912), (4298, 4520)]